I use Sketchup Pro, plus a rendering engine. Has complete flexibility.

Thank You, I will check it. regards Percy

There are a ton of programs out there that do a wide variety of things at various price points. We use Graphisoft's Archicad in my office. It is a full BIM (Building Information Modeling) program, but it expensive for the full package. You can lease it if you only need it for a limited time as a cheaper option. There is also Chief Architect for about half of that, and then all the Autodesk and Revit products. Sketchup makes a great program too, and we use it from time to time. There are also some tablet cad apps too that might get you what you need. Good luck!

Thank You very much for Your attention and information. I will check out all these suggestions.

Best regards and thank You again.